http://www.viroadshow.com/This was one of the coolest applications I have seen in a long time. One of the Applications Engineers here at National Instruments took a Wii controller (or wiimote) and used it to drive a robotic arm. He used VIs (or virtual instruments) to create a program that takes the accelerometer data from the Wiimote and changes it into motion commands for the robot.

One of the coolest things about this, though, was that it only took him a few hours to do. Pretty impressive.